Pluralised and altered the wording of the AMQPConnectionError exception.
Pluralised and altered the wording of the AMQPConnectionError exception.

Previously, the wording of the AMQPConnectionError exception didn't really
make sense, since it is raised even if there are no connection retries.

fkarb/pika-python3,jstnlef/pika,knowsis/pika,benjamin9999/pika,hugoxia/pika,skftn/pika,shinji-s/pika,vitaly-krugl/pika,reddec/pika,Zephor5/pika,renshawbay/pika-python3,Tarsbot/pika,pika/pika,zixiliuyue/pika,vrtsystems/pika